反手发网前球时，应采用（）握拍
A. 随意
B. 正手
C. 反手
D. 苍蝇拍握法
His supervisor pushes and motivates him in such a positive manner that he is not only able to reach but to ______ his personal goals（）
A. shrewd
B. stump
C. surpass
D. suppose
下列哪些因素会导致血液中淀粉酶减低（）
A. 急性胰腺炎
B. 腮腺炎
C. 乙醇中毒
D. 慢性胰腺炎
E. 巨淀粉酶血症
Ethical system is a set of moral principles, or values, that are used to guide and shape_____（）
A. organization
B. society
C. belief
D. behavior
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